Pen-clamping device for ruling-machines.



G. BURROWS. PEN GLAMPING DEVICE EOE EULING MACHINES.

APPLICATION FILED NOV. 24, 1908.

Patented July 13, 1909.

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CHARLES BURROWS, OF HOBOKEN, NEW JERSEY.

PEN-CLAMPING- DEVCE FOR RULING-MCHINES.

Specication of Letters Patent.

Application led November 2e, 1908.

Patented July 13, 1909.

Serial No. 464,201.

.To all whom it may concern.'

Be it known that I, CniinLns BUnRows, a citizen of the United States, residing at Hoboken, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Pen-Clamping Devices for ltuling-vlachines of which the following is a specification.

This invention relates to ruling machines of the type in which a transverse pen-beam is. employed to support the paper ruling devices.

Ordinarily the ruling` pens are attached to this beam in an adjustable manner by means of pen clamps, and the present invention consists primarily in improved means for connecting the clamping means and penbeam.

The pen-clamp, in the type of machines above referred to, is usually secured in proper position on the beam by means of thumb screws arranged at intervals in the length thereof, and adapted to engage the clamp. This construction is disadvantageous for many reasons, it being necessary to operate all of the clamping screws every time the ruling devices are adjusted, which happens quite often; furthermore, the thumb screws cut or indent the pen clamp resulting in a damaged face against which the screws bear. The loss of time, wear and tear on the clamping means, and lach of efficiency of the latter after continued use, due to the above structure, have given rise to this invention in which novel means are provided, whereby to eliminate the disadvantages described, and permitting of simultaneous operation of a plurality of clamping members used te secure the pen-clamp to the pen-beam, as well as avoiding other defects in the form and operative principle of existing mechanisms for the same purpose.

For a full understanding of the invention, reference is to be had to the following detail description and the accompanying drawings, in which Figure l is a bottom plan view of a pcn beam showing the pen-clamp attaching mechanism applied thereto 5 Fig. 2 is a longitudinal sectional view bringing out more clearly the arrangement of the clamping members and operating mechanism therefor; F 3 is a section of the beam showing the pen-clamp mounted and secured thereon; Fig. 4 isa transverse sectional View taken about on the line 4-4 of Fig. 1; and Fig. 5

illustrates a modified construction of the involition.

Throughout the following detail description and on the several figures of the drawings similar parts are referred to by like reference characters.

Referring particularly to the drawings the numeral l denotes the pen-beam, said beam being in general form of a (mnstruction very similar to those most commonly in use and. adapted to be supported in coi'iperation with the other mechanism of the ruling machine, in the customary way. The beam l is preferably of metal, though themeclninism constituting the present invention is adapted to be applied to wooden beams of the old type. Longitudinally thereof the beam l is formed with a slot 2 to receive the .inner end of the pen-clamp 3, the latter being of the usual form and supporting the ruling devices or pens 4t in the well known manner.

A s before premised the present invention consists in the peculiarI means employed to secure the pen-clamp to thebeam l. Mounted in the lower portion of the beam l are a plurality of clamping members 5 adapted for free movement in openings 6 provided in such portion of said beam, the upper ends of the members 5 being adapted to enter the slot 2 and engage with or impinge the portion of thepen-clan ip 3 received in said slot. Springs 7, however, are connected with the outer ends of the members 5 and normally tend to withdraw said members from the slot 2 and hold them out of engagement with respect to the pen-clamp 23. To prevent the engaged surface of the pen-clamp 3 from being damaged, the upper extremities of the several clamping members or pins 5 vided with tips S of soft substance such as rubber, or the like.

The members 5 are operable by .means of a slidingl bar El which is housed in a recess l0 in the bottom of the beam l, said sliding bar being provided upon its upper inner side with a plurality of cams l l, each of which is adapted to engage an adjacent one of the clamping members -5 in order to force said clamping members into engagement with the penclamp 3. The sliding bar S) is actuated by means of a small hand-lever l2 having a round extension 13 journaled in a suitable bearing near one end of the beam l, and also having an arm lli pivotally connected by an operating `rod l5 with the sliding bar 9, as shown at 15.

may be pro- It will be apparent that in the operation of the invention, should it be necessary at any time to adjust the pens e, carried by the penelamp 3, the lever 12 may be swung outwardly with respect to the beam l and this Will move the sliding bar 9 longitudinally of the beam 1 and away from the aXis 13 of said lever. Such movement will cause the cams l1 of the bar 9 to move into positions permitting the springs 7 cooperating with the members 5 to withdraw said members from engagement with the pen-clamp Th clamp 3 may then be adiusted readily. To

again secure the clamp 3 it is only necessary to force the lever 12 in the direction opposite that above referred to and the cams 11 will force the members 5 inte engagement with the clamp. rl`he pivotal connection 15n between the rod 15 and the arm 14 of the lever is so located that when the lever 12 is moved into the position shown in Fig. 1, said pivotal connection 15CL will be slightly above alinement with the pivotal connection 15b and the axis 13 of the lever, tie latter being thereby locked from movement in a manner which will be readily apparent. Not only therefore does the lever 12 constitute an actuating device for the clamping members 5 but said lever forms a locking device lor locking the membersV 5 in engagement with the penclamp 3, thus forming a dual function so to speak.

To prevent displacement of the sliding bar 9 from the recess 10 it is contemplated to secure to the underside ol the beam 1, and covering recess 10, a housing plate 17 fastened te the beam by fastenings 16 such as screws. This plate 17 is formed between its ends with an elongated opening 18 through which the pivotal connection 15b passes.

As shown in Fig. 5 the housing plate 17 may be dispensed with if desired and the sliding bar 9a mounted in the recess 10:l or" the beam 1a with its edges received in guide grooves 10b in the opposite sides of said recess, said guide grooves readily preventing displacement ci" the bar 9L in an evident manner. The construction shown in Fig. 5 may be employed .in connection with the other parts above described, and is advantageous under certain conditions.

ln the practical operation of the invention it will be apparent that all of the clamping members used to secure theoen clamp in position are adapted for simultaneous operation by the actuating devices employed, and the same are also locked in a peculiar and effective manner from accidental disengagement from the pen-clamp.

The various features of the invention will be readily appreciated from the foregoing description.

Having thus described the invention, what is claimed as new, is:

1. In combination, a pen-beam for ruling machines, a detachable pen-clamp mounted thereon, a plurality of clamping members carried by the beam and engageable with the pen-clamp, spring means normally tending to disengage the clamping members from the pen-clamp, and means for causing engagement of the clamping members with the penclamp.

2. ln combination, a pen-beam for ruling machines, a detachable pen-clamp mounted thereon, a plurality of clamping members carried by the beam and engageable with the pen-clamp, spring means normally tending to disengage the clamping members from the pen-clamp, and an operating device orefliecting simultaneous engagement of the clamping members with the pen-clamp.

3. In combination, a pen-beam for ruling machines, a pen-clamp mounted thereon, clamping members carried by the beam and engageable with the pen-clamp, means normally tending to disengage the clamping members from the pen-clamp, a sliding bar mounted on the beam, means for actuating said bar, and cams carried by said bar for effecting simultaneous engagement of the clamping members with the pen-clamp.

4f. ln combination, a pen-beam, a penclamp mounted thereon, a clamping member engageable with said pen-clamp and carried by the beam, a spring connected with said clamping member and normally tending to disengage the same from the pen-clamp, and operating means including a cam for effecting engagement of the clamping member With the pen-clamp.

5. In combination, a pen-beam for ruling machines having a slot, a pen clamp mounted thereon and partly received in said slot, a plurality of clamping members arranged to engage the pen-clamp and carried by the penbeam, a sliding bar provided with cams cooperating with the clamping members to force the same into engagement with the penclamp, an operating lever having an oliistanding arm, and a connection between said arm and the sliding bar for effecting movement of the bar and operation of the clamping members.

In testimony whereof l aHiX my signature in presence of two witnesses.

CHARLES BURRONS.

Tvlvlitnesses:

EMILY D. Bunnows, nvnve L. BURnows. 

